Merge pull request kubernetes#87377 from gavinfish/pkg-util-netsh

Fix static check errors in pkg/util/netsh

Author: k8s-ci-robot

hack/.staticcheck_failures

@@ -18,7 +18,6 @@ pkg/registry/core/service/ipallocator
 pkg/registry/core/service/portallocator
 pkg/registry/core/service/storage
 pkg/util/coverage
-pkg/util/netsh
 pkg/volume
 pkg/volume/azure_dd
 pkg/volume/azure_file

pkg/util/netsh/netsh.go

@@ -21,7 +21,6 @@ import (
 	"net"
 	"os"
 	"strings"
-	"sync"
 	"time"
 
 	"k8s.io/klog"
@@ -54,7 +53,6 @@ const (
 
 // runner implements Interface in terms of exec("netsh").
 type runner struct {
-	mu   sync.Mutex
 	exec utilexec.Interface
 }